Shoe-nail



(No Model.)

L. W. AUSTIN. SHOE NAIL.

No. 405,727. Patented June 25, 1889.

fimmv. M

UNITED STATES PATENT OFFICE.

LLOYD IV. AUSTIN, OF MILIVAUKEE, IVISCONSIN.

SHOE-NAIL.

SPECIFICATION forming part of Letters Patent No. 405,727, dated June 25, 1889.

Application filed May 25, 1888. Serial N0.Z'75,092. (N0 model.)

To all whom, it may concern:

Be it known that I, LLOYD AUSTIN, of Milwaukee, in the county of Milwaukee and State of \Visconsin, have invented new and useful Improvements in Shoe-Nails; and I do hereby declare the following to be a full, clear, and exact description of said invention, reference being had to the accompanying drawings, and to the letters or figures of reference marked thereon, which form a part of this specification.

In the manufacture of shoe-nails it is desirable to produce a nail which maybe readily and easily thrust through the sole and upperleather of the shoe, and which will readily and properly cripple and clinch in the process of driving, whereby the sole will be firmly and permanently secured to the upper-leather; and my invention relates particularly to the form and construction of the point of the nail, whereby it may be easily thrust through the leather, and a proper and sure clinch may be obtained which will not involve the bending or crippling of the nail otherwise than to such extent as is desirable for the clinch.

III the drawings, Figure 1 is a View of my complete nail. Fig. 2 is a view of the same nail in the form it takes in driving and clinching. Fig. 3 is a cross-section on line X X of the nail shown in Fig. 1.

These nails are constructed from wire, and consist of a frusto-conical head A, a round shank B, provided with a series of serrations or notches C on two sides of the shank, and a point D.- The pointD is conical, tapering from the shank to a medium point-that is, to a point not exceedingly fine nor very blunt-and this point in its upper and larger part is re-enforced and strengthened by four tapering ribs E E, which extend from the shank down on the conical point about one-third or one-half its length, or to such a distance as is desired to strengthen the point and provide against its crippling or bending. I preferably use four ribs, but may use any number not less than three.

The form shown in Fig. 2' indicates the method and extent of the crippling and clinching of the nail in driving, and it will be seen that only the very point itself clinches, while all that part of the point which is re-enforced by the ribs E E remains straight in line with the shank B. It will be understood that by this construction a nail is obtained which, while it has a sharp point expanding into the full size of the shank by a long and slender taper, at no place is abrupt, which insures the easy passage of the nail through the leather, and also forms a point which cripples and clinches only at its end.

\Vhat I claim as new, and desire to secure by Letters Patent, is

A nail consisting of a head, a shank of uniform diameter throughout its length, a long conical point tapering with uniform pitch from the surface of the shank to the extremity of the nail, and three or more re-enforcing ribs of equal size integral therewith on the conical point, extending from the shank downwardly upon and along the surface of the point a portion of its length, each rib terminating in a vanishing point a distance from LLOYD W. AUSTIN. \Vitnesses:

C. T. BENEDICT, C. H. KEENEY. 

